Painter painting in our land pictures of only white angels
Painter painting in our time in shadows of yesterday
Eartha Kitt - Angelitos Negros (1970 performance)
I really wish the people giving expert advice on video editing help forums online would be more polite and less straight-up MEAN. Makes me (and I imagine lots of others) never want to ask questions.
Compound microscope, France, 1751. While this instrument would have been initially used by a curious aristocrat, slides accompanying the device span into the mid-19th century, indicating a number of people over many decades put its gears and lenses to use. From the J. Paul Getty Museum, Los Angeles, CA.
It started as a poster board project on his bedroom wall, but more than a decade later, self-taught mapmaker Aaron Carapella has pinpointed the original locations and names of more than 600 Native American tribes.
Image: Hansi Lo Wang/NPR
These photos are shadowgraphs of a hydrogen flame exploding inside a balloon. The shadowgraph optical technique highlights density and temperature variations through their effect on a fluid’s refractive index. Here we see that the hydrogen flame has a strong cellular structure and is more turbulent than a methane flame. The cellular structure is a sign of an instability in the curved flame front. The instability and accompanying cellular appearance are a result of the complicated transport and reaction of fuel and oxidizer inside the flame. (Photo credits: P. Julien et al.)
This timelapse video shows Jupiter as seen by Voyager 1. In it, each second corresponds to approximately 1 Jupiter day, or 10 Earth hours. Be sure to fullscreen it so that you can appreciate the details. The timelapse highlights the differences in velocity (and even flow direction!) between Jupiter’s cloud bands. It is these velocity differences that create the shear forces which cause Kelvin-Helmholtz instabilities—the series of overturning eddies—seen between the bands. Earth also has bands of winds moving in opposite directions, but there are fewer of them and the composition of our atmosphere is such that they do not make for such a dramatic naked eye view of large-scale fluid dynamics. (Video credit: NASA/JPL/B. Jónsson/I. Regan)